§-Quick questions
NSWPhysicsModule 6: Electromagnetism
Quick questions on Electromagnetic induction: HSC Physics Module 6
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are eddy currents?Show answer
When a bulk conductor (a sheet, disc or block of metal) experiences a changing flux, induced EMFs drive circulating currents called eddy currents inside the conductor. They oppose the change in flux that produced them, so they exert a drag force on whatever is causing the flux change.
What is the induction coil?Show answer
An induction coil is a transformer-like device used to produce high-voltage pulses from a low-voltage DC source. It has:
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